Vermont Castings 3380 User manual

R
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DIAN
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4555
Radiance
UVSOD
cover
7/24/01 djt
30005056_R10 • 05/15
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Radiance®Vent Free Gas Heater
Installation and Operating Instructions
Models: 0003380, 0003381
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
INSTALLER / CONSUMER SAFETY INFORMATION
Please read this manual before installing and using
appliance.
WARNING: If the information in this manual is not
followed exactly, a re or explosion may result causing
property damage, personal injury or loss of life.
- Do not store or use gasoline or other ammable
vapors and liquids in the vicinity of this or any other
appliance.
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the
re department.
Installation and service must be performed by a qualied
installer, service agency or the gas supplier.
This is an unvented gas-red heater. It uses air (Oxygen)
from the room in which it is installed. Provisions for
adequate combustion and ventilation air must be
provided. Refer to Page 7.

2
Radiance®Vent-Free Gas Heater
30005056
Installation and Operating Instructions ...................................................................................... 3
Stove Dimensions ...............................................................................................................4
Clearance Requirements..................................................................................................... 5
Hearth Requirements ..........................................................................................................5
Gas Specications............................................................................................................... 6
Gas Inlet and Manifold Pressures .......................................................................................6
High Elevations ...................................................................................................................6
Odor During Operation ........................................................................................................ 6
Vent Free Features.............................................................................................................. 7
Fresh Air Requirements.......................................................................................................7
Assembly Procedures
Tools Required/Hardware Bag Contents ............................................................................. 8
Unpacking the Radiance .....................................................................................................8
Remove the Front, Screen and Logs ..................................................................................8
Assemble Legs....................................................................................................................9
Install Optional Fan .............................................................................................................9
Install ON/OFF Switch.......................................................................................................12
Thermostat Connection (Optional) ....................................................................................12
Connect the Gas Supply Line............................................................................................ 13
Install Log Set.................................................................................................................... 13
Complete the Installation...................................................................................................14
Operation
Your First Fire ....................................................................................................................15
Pilot and Burner Inspection ...............................................................................................15
Flame & Temperature Adjustment .....................................................................................15
Flame Characteristics........................................................................................................15
Lighting Instructions ..........................................................................................................16
Troubleshooting.................................................................................................................17
Maintenance
Firebox Cleaning and Inspection.......................................................................................19
Cleaning Procedure...........................................................................................................19
Care of Cast Iron ............................................................................................................... 19
Replacement Parts ......................................................................................................................20
Optional Accessories .................................................................................................................22
Warranty .......................................................................................................................................23
PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING APPLIANCE.
Thank you and congratulations on your purchase of a Vermont Castings stove.
IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to follow these
instructions may result in a possible re hazard and will void the warranty.
Table Of Contents
Proposition 65 Warning: Fuels used in gas, woodburning
or oil red appliances, and the products of combustion
of such fuels, contain chemicals known to the State
of California to cause cancer, birth defects and other
reproductive harm.
California Health & Safety Code Sec. 25249.6

3
Radiance®Vent-Free Gas Heater
30005056
Installation & Operating Instructions
In order to ensure safe and effective installation, this unit must be
installed only by a qualied agency, individual, rm, corporation
or company that is experienced in the installation, repair and
servicing of this type of appliance and is familiar with the building
codes and installation techniques appropriate in your area.
Contact your hearth products dealer or local gas supplier for
the name of a qualied service person.
In the Commonwealth of Massachusetts, all gas ttings and
installation of this heater shall only be done by a licensed gas
tter or licensed plumber.
IMPORTANT: Read this owner’s manual carefully and
completely before trying to assemble, operate, or service this
heater. Improper use of this heater can cause serious injury
or death from burns, re, explosion, electrical shock, and
carbon monoxide poisoning. Failure to follow instructions
may result in property damage, bodily injury or loss of life.
This manual contains important user information. Keep
this manual with the heater after installation is complete.
FOR SAFE INSTALLATION AND OPERATION, PLEASE
NOTE THE FOLLOWING:
1. Use only Natural Gas with RUVSODRN. Use only
Propane with RUVSODRP. Do not use any other fuels.
2. Install only in accordance with the National Fuel Gas
Code, ANSIZ223.1/NFPA54-latest edition. (Exception: Do
not derate this appliance for altitude. This appliance has
been tested and listed for use in altitudes up to 10,000
feet.)
3. Use only the installation instructions provided by the
manufacturer for this appliance. Installation and repair
should be done by a qualied installer, preferably NFI
or WETT (Canada) certified. The appliance should
be inspected before use and at least annually by a
professional service person. More frequent cleaning may
be required due to excessive lint from carpeting, bedding
material, etc. It is imperative that control compartments,
burners and circulating air passageways of the appliance
be kept clean.
4. WARNING: Any change to this heater or its controls can
be dangerous. DO NOT make modications to any heater
or associated parts.
5. DO NOT install this heater in a bedroom or bathroom.
6. Due to high surface temperatures, DO NOT install this
heater
• in a recreational vehicle,
• where curtains, furniture, clothing or other ammable
objects are less than 36 inches from the front, top or
sides of the heater,
• in high trafc areas,
• in windy or drafty areas.
7. DO NOT place clothing or other ammable material on
or near the appliance.
CARBON MONOXIDE POISONING MAY LEAD TO
DEATH!
Carbon Monoxide Poisoning: Early signs of carbon
monoxide poisoning resemble the u, with headaches,
dizziness, or nausea. If you have these signs, the heater
may not be working properly. Get fresh air at once! Have
the heater serviced. Some people are more affected by
carbon monoxide than others. These include pregnant
women, people with heart or lung disease or anemia, those
under the inuence of alcohol, and those at high altitudes.
8. DO NOT obstruct the top grille at all. Doing so will cause
high levels of carbon monoxide that will lead to death.
9. This heater needs fresh, outside air ventilation to operate
properly. Refer to the Fresh Air Requirements on Page
7.
10.This heater shall not be installed in a room or space
unless the required volume of indoor combustion air is
provided by the method described in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, the International Fuel
Gas Code or applicable local codes.
10.If heater shuts off, heater may not have enough fresh
air ventilation. Provide more fresh air. If heater keeps
shutting off, refer to Troubleshooting.
11.DO NOT operate this heater
• where ammable liquids or vapors are used or stored
• under dusty conditions.
12.The heater becomes very hot when operating. Alert
children and adults to stay away from hot surfaces to
avoid burns or clothing ignition. The heater will remain
hot for a time after shutdown. Allow surface to cool
before touching.
13.Carefully supervise young children when they are in the
room with the heater.
14. Do not use the heater if any part has been exposed
to or under water. Immediately call a qualied service
technician to inspect the room heater and to replace any
part of the control system and any gas control which has
been under water.
15.DO NOT operate the heater if any log is broken or
damaged.
16.Turn heater off and let cool before servicing. Only a
qualified service person should service and repair
heater.
17.DO NOT operate this appliance with the safety screen
removed. If the safety screen is removed from the
appliance for service or cleaning, it must be replaced
before operating the heater.
NOTE: If any of the original wire as supplied with the appliance
must be replaced, it must be replaced with a wire of at least
105° F temperature rating.

4
Radiance®Vent-Free Gas Heater
30005056
Drawing Not to Scale
31"
(787mm)
29³⁄₄"
(756mm)
RADIANCE
18³⁄₈"
(465mm)
11"
(279mm)
28¹⁄₄"
(717mm)
6¹⁄₂"
(165mm)
4555
RUVSOD specs
7/01
Supply Inlet
Fig. 1 - Radiance Vent Free dimensions.
Radiance Vent Free Gas Heater Dimensions

5
Radiance®Vent-Free Gas Heater
30005056
Clearance Requirements
Minimum Clearances to Combustible Materials
Maintain clearance, (empty space), between combustible
materials and the heater as specied below.
Hearth Requirements
The Radiance Unvented heater must be installed on rigid
ooring. If the appliance is installed on any combustible
surface other than wood ooring, such as carpet or tile, a
metal or wood panel must be installed to extend the full
length and width of the unit. There are no other hearth or
oor protection requirements.
Ref.
Mantel
Shelf Depth Ref.
Mantel from
Stove Top
A4-1/2"
(190mm) V16" (406mm)
B6" (152mm) W14-1/2"
(368mm)
C4-1/2"
(114mm) X13" (330mm)
D3" (75mm) Y11-1/2"
(292mm)
E1-1/2
(38mm) Z10" (254mm)
Fig. 3 - Minimum mantel clearance.
FP599b
JUV
stove mantel heights
9/21/00 djt
A
B
C
D
E
V
W
X
Y
Z
Wall
BAC
D
ST101
Min. Clrnc
4/15/99 djt
A: Ceiling ............................................ 32” (813 mm)
B: Side Wall .......................................... 4” (102 mm)
C: Rear Wall ......................................... 4” (102 mm)
D: Max. Alcove Depth ......................... 24” (610 mm)
Fig. 2 - Minimum wall clearances.
• Do not install this heater in a bathroom or bedroom.
• Installation of this heater must conform with local codes
or, in the absence of local codes, with the National Fuel
Gas Code, ANSI Z223.1/NFPA 54.
• This heater creates warm air currents. These currents
move heat to wall surfaces next to the heater. Installing
the heater next to vinyl or cloth wall coverings or operating
the heater where impurities in the air such as tobacco
smoke exist, may discolor walls.
• Do not use a blower insert, heat exchanger insert or
other accessory not approved for use with this heater.
WARNING
!

6
Radiance®Vent-Free Gas Heater
30005056
Radiance Vent-Free
Certied to:
ANSI Z21.11.2 (Latest Edition)
Unvented Heaters
Firebox weight / shipping 175 lbs.
The installation of your Radiance stove must conform with
local codes, or in the absence of local codes, with the National
Fuel Gas Code ANSI Z223.1/NFPA 54 - latest edition.
(EXCEPTION: Do not derate this appliance for altitude up to
4,500 feet (1,370 m). Maintain the manifold pressure at 3.5”
w.c. for Natural Gas and 11.0” w.c. for LP Gas.
High Elevations
Input ratings are shown in BTU per hour and are certied
without deration from elevations up to 4,500 feet (1,370
m) above sea level.
Nuisance outages may occur at altitudes above 4,500 feet
(1,370 m) if dirt, dust, lint and/or cobwebs are allowed
to accumulate on burner and/or ODS pilot. Monthly
inspection and cleaning is recommended for altitudes
above 4,500 feet (1,370 m)
For elevations above 4,500 feet (1,370 m), installations
must be in accordance with the current ANSI Z223.1/
NFPA 54 and/or local codes having jurisdiction.
Odor During Operation
Neither natural gas nor propane gas give off an odor when
burned. The nature of a vent free combustion system,
however, is such that odors may occasionally be produced
during heater operation when impurities exist in the immediate
area. Cleaning solutions, paint, solvents, cigarette smoke,
candles, adhesives, new carpet or textiles, etc., all can create
fumes. These fumes may mix with combustion air and can
create odor. Such odors will disappear over time, however the
condition can be alleviated by opening a window or otherwise
providing additional ventilation to the area.
This appliance may be installed in an aftermarket*
manufactured (mobile) home, where not prohibited
by state or local codes.
This appliance is to be used only with the type of gas
specied on the rating plate which is attached to the
rear panel. This appliance is not convertible for use
with other gases.
*Aftermarket: Completion of sale, not for purpose of resale, from the
manufacturer.
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. Refer
to this manual for correct installation and operational
procedures. For assistance or additional information
consult a qualied installer, service agency, or the gas
supplier.
WARNING
!
Gas Inlet and Manifold Pressures
Natural LP (Propane)
Inlet Minimum 5.5" w.c. 11" w.c.
Inlet Maximum 14" w.c. 14" w.c.
Manifold Pressure 3.5" w.c. 10" w.c. (MP)
11" w.c. (RP)
Gas Specications
Model Fuel
Gas
Control
Max
Input
BTU/h
Min
Input
BTU/h
Air
Shutter
Setting
3380 Nat. Millivolt 35,000 26,000 Fully
Closed
3381 1" Open

7
Radiance®Vent-Free Gas Heater
30005056
Vent Free Features
The Radiance Vent Free stove, is an unvented gas heating
appliance tested and listed to the ANSI standard Z21.11.2
Latest Edition. This appliance is specically congured to
burn either Natural Gas or Propane fuel, as indicated on the
metal rating plate attached to the rear shroud. The Radiance
Vent Free is not fuel convertible.
The stove is shipped fully assembled with the exception of
the log set. The log set is assembled during installation.
The stove is equipped with an SIT control valve that allows
thermostatic control, on/off switch or a remote switch (not
supplied).
The stove model incorporates variable regulators that allow
you to adjust burner heat output between HIGH, (35,000 Btu),
and LOW, (26,000 Btu). See the Operation Section for details.
A push button Piezo ignitor is used to light the standing pilot.
The pilot incorporates an Oxygen Depletion System (ODS/
pilot) which will shut off gas ow to the burner in the event
that sufcient fresh air becomes unavailable for continued
safe operation.
Fresh Air Requirements for Combustion and Ventilation
Modern construction standards have resulted in homes that
are highly energy-efcient and that allow little heat loss.
Your home needs to breathe, however, and all fuel-burning
appliances within it require fresh air in order to function properly
and safely. Exhaust fans, clothes dryers, replaces, and other
fuel burning appliances all use the air inside the building. If
the available fresh air is insufcient to meet the demands of
these appliances, problems can result.
The Radiance Unvented heater has specific fresh air
requirements. You must determine that these fresh air
requirements will be met within the space where the
appliance will be installed. The following information will
help you insure that adequate fresh air is available for the
heater to function properly.
If the area in which the heater may be operated does
not meet the required volume for indoor combustion air,
combustion and ventilation air shall be provided by one
of the methods described in the National Fuel Gas Code,
ANSI Z223.1/NFPA 54, the International Fuel Gas Code
or applicable local codes.
WARNING
!
This heater must have fresh air for proper operation. If
not, poor fuel combustion could result. Read the following
instructions to insure proper fresh air for this and other
fuel-burning appliances in your home.
WARNING
!

8
Radiance®Vent-Free Gas Heater
30005056
Read these instructions thoroughly before starting the
assembly. Follow procedures in the order given. Inspect
the stove for damage before starting the assembly. Do
not install this stove if any damage is evident. Contact
your dealer immediately.
The Radiance is shipped on its back, mounted to a wooden
pallet. It is fully assembled, although packing materials
must be removed from the rebox and the Log Set installed.
Connection to the gas supply must be performed only by a
qualied gas technician who should also verify that adequate
ventilation is available to support proper burner function.
Installation of optional accessories, such as the fan or
thermostat, is most easily accomplished before the gas supply
connection is made.
Tools Required
• Stub-handled Phillips screwdriver • work gloves
• Standard Phillips screwdriver • knife
• Standard at-blade screwdriver
• Tape measure • needle-nose pliers
Hardware Bag Contents
• Porcelain Handle (Front Door)
• Control Door Handle & Screw
• (2) Bags of Lava Rock
• (6) 10 x 1/2” Screws
• Bracket, Wire Switch
• Registration Card & Manual
• (4) CS, Hex Hd 3/8-16 x 1 Gr 2-Z
• (4) Washer, Fl 3/8-Z
Unpacking the Radiance
Assembly Procedures
Fig. 4 - Remove the front plate.
ST139
Radiance
remove front
4/20/01 djt
Fig. 5 - Lift screen from rebox.
ST187
RUVSOD
remove screen
7/01
Screen Hooks
Remove the Front, Screen and Logs
Remove the Front panel, the Screen panel, the Log Set and
hardware bag from the rebox before positioning the stove.
1. Remove the accessory package from the top of the stove.
The manual, hardware package, and lava rocks are
packed on top of the rebox. Set these aside.
2. Remove the Front Plate. Grasp one side and the bottom,
and lift the front plate as a unit (the control door attaches
to the stove front). Swing the bottom edge out and away
from the stove body, (Fig. 4)
3. Remove the screen frame. (Fig. 5)
4. Remove the Log Set. Lift out the package and any packing
material from the burner tray and rebox. Unpack the log
set and inspect each piece for damage. DO NOT INSTALL
DAMAGED LOGS. Set the logs aside out of the way.
1. Cut the shipping straps.
2. Unpack the top grate and screen from the carton, and set
them aside.
CAUTION
!
Enameled castings can chip easily! Handle enameled
castings carefully to avoid damage.

9
Radiance®Vent-Free Gas Heater
30005056
6. Remove pallet and allow stove to gently rest on all four
legs.
7. Adjust leg levelers to compensate for irregularities in the
hearth.
Install Optional Fan
It is easiest to install the optional fan kit #2767/FK26, before
the stove is moved to its nal location or connected to the
gas line.
The fan consists of a blower assembly and a rheostat switch
that are connected by a wire harness. The blower attaches
to a bracket at the bottom of the rear shroud. The rheostat
installs at the bottom of the stove on the left of the valve.
The fan kit includes a ‘snapstat’, a temperature-sensing
switch which will be mounted to the blower duct just below
the top plate of the stove. The snapstat automatically turns
the fan on or off at approximately 109° F.
The rheostat provides a range of fan speed settings from OFF
(which overrides the snapstat function) to high.
Kit Contents
• Fan assembly with rheostat and snapstat
• wire tie • control knob • retaining collar
ST720
Radiance
slide stove back
7/30/02 djt
Fig. 6 - Slide stove back just far enough to access rear leg holes.
ST721
Radiance
attach
front legs
7/30/02 djt
Washer
Hex Head Bolt
Fig. 7 - Carefully tip stove onto back legs. Leave pallet under stove
to keep stove from falling fully forward.
Fig. 8 - Loosen four phillips screws holding rear shroud assembly
and remove. Remove four phillips screws holding rear shroud to
inner duct assembly. Remove rear shroud.
ST189
fan remove shroud
radiance
11/99
Rear Shroud
Assembly
1. Loosen the four phillips head screws which secure the
rear shroud to the stove sides. (Fig. 8)
2. Carefully pull the shroud assembly away from the rear of
the stove.
3. With the rear shroud assembly in the upright position, set
the bottom of the shroud on a padded surface to prevent
scratching the surface. Unfasten the four phillips head
screws which attach the outer shroud to the inner duct
assembly.
CAUTION
!
Sheet metal edges can be sharp. Be sure to wear protective
gloves.
4. Have your assistant attach one leg using the hardware
described.
5. Move the pallet to allow access to the other front leg hole.
Attach remaining leg.
2. Attach the rear legs using 3/8” hex head bolts and at
washer supplied. Tighten with a 9/16” wrench or socket.
Remove and discard the large slot-head screws using the
at-blade screwdriver.
3. Carefully tip the stove onto its rear legs. Adjust the pallet
to allow access to one of the front leg holes. Be sure to
leave the pallet under the stove to prevent the stove from
falling fully forward. (Fig. 7)
Assemble the Legs
1. Slide stove to the rear of the pallet just far enough to
access rear leg holes. Make sure the stove does not tip
over backwards. (Fig. 6)
CAUTION
!
To prevent valve tubing from being crushed or damaged,
make sure to rest valve on wooden pallet.

10
Radiance®Vent-Free Gas Heater
30005056
ST640
RUVSOD
snapstat
7/01
Snapstat Bracket
Snapstat Module
Pinch
Grommet
to Remove
Fig. 10 - Remove the snapstat and grommet from the bracket and
insert the grommet into the inner shroud.
Fig. 11 - Position the fan to engage the inner shroud with the fan
bracket slots and secure with sheet metal screws.
ST194
attach fan to shroud
11/99
{Inner Shroud}
Outer
Shroud
Slot
Slot
Fig. 12 - Install the snapstat and connect the extension wire
terminals. View is with top removed, however, access is available
through the rear when installing fan before gas line connection.
ST195
attach snapstat
11/99
Snapstat
Left Air Duct
ST669
RUVSOD
attach fan to bracket
7/01
Fig. 9 - Attach the fan assembly to the fan bracket.
Fan
Bracket
Finger Guard
Snapstat
Wire
Rheostat
Wire
9. Install the snapstat by loosening the front screw on the
inner side of the duct (Fig. 12) slide the snapstat under
the head of the screw and tighten. Connect the leads
to the snapstat. Make sure the snapstat assembly is
mounted straight front to back.
10. Slide shroud assembly over the sides and fasten the four
screws loosened earlier.
6. Position the fan assembly so the ducts slide between the
inner and outer shroud. The inner shroud should engage
with the two slots in the ends of the bracket so that bracket
and shroud are interlocked. (Fig. 11) Secure the bracket
with the four sheet metal screws provided in the nish
bag.
7. Route the rheostat wire assembly to the right between the
inner and outer shroud. Run the wire through the slots at
the bottom right corner of the inner shroud.
8. Refasten the outer shroud to the inner duct assembly.
5. Connect snapstat leads. Disconnect the snapstat module
from the leads inside the snapstat bracket. (Fig. 10)
Bend open the snapstat bracket. Use needlenose pliers
to remove the black plastic grommet from the bracket.
Discard the bracket. Insert the grommet and wires into the
large hole at the bottom right corner of the inner shroud.
Feed the snapstat wire leads through the grommet into the
stove interior. Connect the two wires to the two snapstat
extension leads attached to the inner shroud.
4. Attach the fan assembly to the fan bracket provided in the
log box. Use #10 sheet metal screws provided with fan
kit. Do not remove nger guard screws. (Fig. 9)

11
Radiance®Vent-Free Gas Heater
30005056
Fig. 14 - #2767 / FK26 Fan Wiring Diagram
MOTOR
SNAPSTAT
ON/OFF
RHEOSTAT
WHT
WHT
BLK
BLK
BLK
GRN
BLK
POWER
ST196
FK26 fan diangram
11/99
Disconnect power
before servicing.
NOTE: If you are installing the fan kit after the stove is in its
nal location, follow same steps mentioned previously with
the exception of disengaging only the right side of the outer
shroud.
ST347a
JUV
FK28
rheostat install
9/21/00
Rheostat
Retaining Nut
Control Knob
Fig. 13 - Attach rheostat to control panel. Valve may look different.
11.The rheostat control switch attaches to the left side of the
valve bracket at the front of the stove. (Fig. 13)
• Remove retaining nut from shaft of rheostat. (if pre-
installed)
• Insert the rheostat through the hole in the back of
the left side of the valve bracket, aligning the locator
pin with the smaller hole in that bracket.
• Thread the retaining nut onto the shaft of the rheostat,
tightening with a wrench. Do not overtighten.
• Attach the control knob to the rheostat shaft.
• Use the wire tie to secure the fan and rheostat wire
harnesses together.
12. Plug the power cord into a standard grounded 110 volt
household outlet. If the fan control knob is not turned
to the OFF position, the fan will turn on when the
temperature at the snapstat reaches approximately 109°
F.
The optional fan kit is equipped with a three-prong
(grounding) plug for your protection against shock hazard
and should be plugged directly into a properly grounded
three-prong outlet. Do not cut or remove the grounding
prong from this plug.
WARNING
!

12
Radiance®Vent-Free Gas Heater
30005056
OFF ON
Thermostat
(Optional)
Thermopile
Black
Black
Millivolt
Gas Valve
St124b
on/off/switch
wiring
1/11/00 djt
TP/TH
TP
TH
Thermostat
(Optional)
Thermopile
Black
Black
Millivolt
Gas Valve
St124c
Thermostat
wiring
1/11/00 djt
TP/TH
TP
TH
On/Off Switch Wiring
Optional Thermostat Wiring
Install ON/OFF Switch
The switch assembly parts are found in the parts bag.
1. Attach switch assembly to left rear side of stove shroud
using two screws and existing holes in shroud. (Fig. 15)
2. Run wires down back of stove, under bottom of rear shroud
to valve.
3. Attach wires to valve terminals. (Fig. 16)
ST315
attach switch assy
1/31/00 djt
Existing
Holes
Switch
Assembly
Screws
Fig. 15 - Attach switch assembly to rear shroud.
Fig. 16 - Install wiring to switch before connecting to valve.
SIT Valve
P
I
L
O
T
TPTH TP TH
FP1622
SIT valve w/switch
Valve
Thermopile
ON/OFF Switch or
Millivolt Thermostat
Thermostat Wire / Gauge Maximum Run
18 40 feet
20 25 feet
22 16 feet
Thermostat Connection (Optional)
Use only a thermostat rated for 500 - 750 millivolts. Do
not use low voltage (24V) thermostats.
Check the table below for the appropriate gauge thermostat
wire to use for the length of lead required in your installation.
1. Install the wall thermostat in the desired location and run
the wires to the stove location. Terminate these leads with
1/4” female connectors.
2. Connect the thermostat wires to the valve. (Fig. 16)

13
Radiance®Vent-Free Gas Heater
30005056
Install Log Set
1. Remove the logs from their packaging, and inspect each
piece for damage. DO NOT INSTALL DAMAGED LOGS.
2. Install the rear left log by placing it on the sheet metal shelf
at the back of the rebox. (Fig. 22) The log should touch
the back wall of the rebox. Slide the log to the left until
the left side lines up with the left bracket. (Fig. 22) When
the log is in place the left front corner of the log should
rest on the decorative grate.
3. Install the rear right log by placing it on the sheet metal
shelf at the back toward the right. Make sure the right side
of the log lines up with the right bracket. (Fig. 22) NOTE:
When the right and left rear logs are in place, they should
touch the back of the rebox and each other.
4. Install the right log by engaging hole on the bottom with
pin on the right rear log. (Fig. 22) Set the bottom of the
log on the bracket and bring forward to come in contact
with decorative grate on right.
This appliance should only be connected by a
qualied gas technician. Test to conrm manifold
pressures as specied below.
The Radiance Heater and its individual shutoff valve
must be disconnected from the gas supply piping
during any pressure testing of that system at test
pressures in excess of 1/2 psig (3.5 kPa).
The Radiance Heater must be isolated from the gas
supply piping system by closing its individual manual
shutoff valve during any pressure testing of the gas
supply piping system at test pressure equal to or less
than 1/2 psig.
There must be a gas shutoff between the stove and
the supply.
In order to connect Natural Gas, use a tting with 3/8”
NPT on the valve side and 1/2” natural gas supply line
with an input of 35,000 Btus at a manifold pressure of
3.5” between minimum inlet supply of 5.5” w.c. and
maximum of 14.0” w.c.
In order to connect Propane, use a tting with 3/8” NPT
on the valve side and 1/2” propane gas supply line with
an input of 35,000 Btus at a manifold pressure of 11.0”
between a minimum inlet supply of 11.0” w.c. and
maximum of 14.0” w.c.
Connect the Gas Supply Line
Check the Rating Plate attached by a steel cable to the
rebox, to conrm that you have the appropriate rebox for
the type of fuel to be used.
This appliance should only be connected by a qualied
gas technician. Test to conrm manifold pressures as
specied below.
The Radiance Heater and its individual shutoff valve
must be disconnected from the gas supply piping during
any pressure testing of that system at test pressures in
excess of 1/2 psig (3.5 kPa).
The Radiance Heater must be isolated from the gas
supply piping system by closing its individual manual
shutoff valve during any pressure testing of the gas
supply piping system at test pressure equal to or less
than 1/2 psig.
There must be a gas shutoff between the stove and the
supply.
In order to connect Natural Gas, use a tting with 3/8”
NPT nipple on the valve side and 1/2” natural gas supply
line with an input of 35,000 BTUs at a manifold pressure
of 3.5” and minimum inlet supply for adjustment of 5.5”
w.c.
In order to connect Propane, use a tting with 3/8” NPT
nipple on the valve side and 1/2” propane gas supply
line with an input of 35,000 BTUs at a manifold pressure
of 11.0” and minimum inlet supply for adjustment of
11.0” w.c.
Gas connection should be made in accordance with
current National Fuel Gas Code, ANSI Z223.1. Since some
municipalities have additional local codes, be sure to consult
you local authority.
Connect the gas supply and test for leaks. Use a 50/50
solution of liquid soap and water to test for leaks at gas ttings
and joints. NEVER test with an open ame. Light the pilot
according to the directions in the Lighting and Operating
section of this manual, before going to the next step.
CAUTION
!

14
Radiance®Vent-Free Gas Heater
30005056
LG160
RNV logs
top view
6/4/01 djt
Left Rear Log Right Rear
Log
Lava rock may
be placed in this
area
Decorative Grate
Top View
Fig. 19 - Lava rock placement.
Fig. 17 - Install the left and right rear logs and the right log.
LG156
Radiance logs
4/23/01 djt
Decorative
Grate
Right Log
Right Rear Log
Left Rear Log
Left Bracket Right Bracket
Fig. 18 - Completed log installation.
LG155
Radiance logs
installed
4/24/01 djt
Lava Rock
Log rests on
decorative grate
Complete the Installation
1. Replace the screen frame by sliding the hooks over the
top front edge of the rebox and resting the bottom on
the support brackets. Swing the top edge of the assembly
toward the rebox, and center it. Fasten it by closing the
latches over the top left and right edges of the frame.
2. Replace the stove front by grasping it by the left and
right edges. Lift it so that tabs on the back side of the
top corners engage notches at the top forward corners
of the stove sides. Then gently swing the bottom of the
front panel to a vertical position, and lower it till prongs
on its bottom left and right corners engage with notches
cast into the tops of the forward legs. (Fig. 20) Test that
the front is installed securely by grasping two of panel’s
vertical bars, and pulling the panel toward yourself. When
the panel is in place properly you should not be able to pull
the bottom of the front toward yourself without also lifting it.
3. Attach the wooden handle to the control door using the
#8-32 x 2” screw from the parts bag. (Fig. 21)
4. Set the screen and the cast-iron grate into the recess in
the stove top.
This completes the installation and assembly of the
Radiance.
Fig. 20 - Replace the front panel.
ST139a
Radiance
replace front
7/24/01 djt
ST197
RUVS attach accessory door handle
7/01
Fig. 21 - Attach the handle to the control door.
5. Loosely sprinkle the lava rocks directly on top of the
burner just behind decorative grate. (Fig. 19) Use the
lava rock to cover brackets on the burner. Do not place
lava rocks toward back of burner. The lava rock is
shipped inside the bag assembly.

15
Radiance®Vent-Free Gas Heater
30005056
Operation
The Radiance is shipped with the operable door front plate.
The stove may be operated with the doors either open or
closed. To open the front doors, insert the handle provided
into the door latch stub and turn it to the right and up. (Fig.
22) When not in use, the handle may be stored in the handle
holder on the right side of the rear shroud. (Fig. 23)
Fig. 22 - To open the front doors, turn handle counterclockwise.
ST621
Radiance
operable doors
1/31/01
Clockwise
to Close
Counterclockwise
to Open
ST624
handle holder
2/6/01
RADIANCE
Handle
Holder
Fig. 23 When not in use, store handle in the handle holder.
ST673
RUVSOD
Pilot assembly location
7/249/01 djt
Natural
Pilot
LP Pilot
Fig. 24 - Pilot assembly location.
ST198
pilot flame detail
11/99
Fig. 26 - Correct pilot ame appearance. OP pilot.
Fig. 27 - Correct burner ame pattern.
Red Glow
LG155
Radiance logs
installed
4/24/01 djt
Fig. 25 - Flame adjustment knob for SIT valve.
L
O
H
I
FP390
FLAME ADJUSTMENT KNOB
11/21/96
Turn
counterclockwise
to increase
flame height
Turn clockwise
to decrease
flame height
Flame Characteristics
It is important to periodically perform a visual check of the pilot
and burner ames. Compare them to the illustrations below.
(Fig. 26, 27) If the ame patterns appear abnormal, contact
a qualied service provider for service and adjustment.
Your First Fire
Read these instructions carefully and familiarize yourself
with the burner controls. Locate the pilot assembly, Figure
24. Follow the lighting instructions on in the Lighting and
Operating section of this manual exactly.
During the rst re, it is not unusual to smell some odor
associated with new logs, paint and metal being heated.
Odors should dissipate within the rst eight to ten hours,
however, you can open a window to provide fresh air to
alleviate the condition.
Pilot and Burner Inspection
Each time you light your heater check that the pilot ame and
burner ame patterns are as shown in Figure 26 and Figure
27. If ame patterns are incorrect, turn the heater off. Contact
your dealer or a qualied gas technician for assistance. Do
not operate the heater until the pilot ame is correct.
Flame & Temperature Adjustment
For units equipped with HI/LO valves, the ame adjustment is
accomplished by rotating the HI/LO adjustment knob located
near the center of the gas valve. (Fig. 25)

16
Radiance®Vent-Free Gas Heater
30005056
FOR YOUR SAFETY READ BEFORE LIGHTING
• If you cannot reach your gas supplier, call the Fire
Department
C. Use only your hand to push in or turn the gas control knob.
Never use tools. If the knob will not push in or turn by hand,
do not try to repair it, call a qualied service technician.
Applying force or any attempted repair may result in a re
or explosion.
D. Do not use this replace if any part has been under water.
Immediately call a qualied service technician to inspect
the heater and to replace any part of the control system
and any gas control which has been under water.
A. This heater has a pilot which must be lit manually. When
lighting the pilot follow these instructions exactly.
B. BEFORE LIGHTING smell all around the heater area for
gas. Be sure to smell next to the oor because some gas
is heavier than air and will settle on the oor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any replace
• Do not touch any electric switch
• Do not use any phone in your building
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
Lighting and Operating Instructions
If you do not follow these instructions exactly, a re or
explosion may result causing property damage, personal
injury or loss of life.
WARNING
!
1. STOP! Read the safety information above.
2. Turn off all electrical power to the replace.
3. Turn the On/Off switch to “OFF” position or set thermostat
to lowest level.
4. Open control access panel.
5. Push in gas control knob slightly and turn clockwise
to “OFF”.
Lighting Instructions
PILOT
ON
OFF
ON
P
I
L
O
T
O
F
F
O
F
F
FP1067
lighting instruction
knobs
3/9/01 djt
5
4
3
2
1
O
F
F
P
i
l
o
t
SIT NOVA
3/8" - 1/2"
FP1068
Lighting instructions
Pilots
• If knob does not pop up when released, stop and
immediately call your service technician or gas supplier.
• If after several tries, the pilot will not stay lit, turn the gas
control knob to “OFF” and call your service technician or
gas supplier.
11. Replace glass door.
12. Turn gas control knob to “ON” position.
13. Turn the On/Off switch to “ON” position or set thermostat
to desired setting.
14. Turn on all electrical power to the replace.
10. Push the control knob all the way in and hold. Immediately
light the pilot by repeatedly depressing the piezo spark
ignitor until a ame appears. Continue to hold the control
knob in for about one (1) minute after the pilot is lit. Release
knob and it will pop back up. Pilot should remain lit. If it
goes out, repeat steps 5 through 8.
6. Wait ve (5) minutes to clear out any gas. Then smell
for gas, including near the oor. If you smell gas, STOP!
Follow “B” in the safety information above. If you do not
smell gas, go to the next step.
7. Remove glass door before lighting pilot. (See Glass Frame
Removal section).
8. Visibly locate pilot by the main burner.
9. Turn knob on gas control counterclockwise to
“PILOT”.
To Turn Off Gas To Heater
1. Turn the On/Off switch to Off position or set the thermostat
to lowest setting.
2. Turn off all electric power to the replace if service is to
be performed.
3. Open control access panel.
4. Push in gas control knob slightly and turn clockwise
to “OFF”. Do not force.
5. Close control access panel.

17
Radiance®Vent-Free Gas Heater
30005056
Troubleshooting
Follow these procedures in the order presented.
CONDITION POSSIBLE CAUSE SOLUTION
No spark at pilot when Ignitor is
operated.
1. Ignition Electrode is disconnected
from ignition wire, broken or incor-
rectly positioned.
2. Ignitor wire is broken.
3. Bad Piezo Ignitor.
1. Inspect and re-connect, replace
or repair as necessary.
2. Replace wire.
3. Replace Piezo Ignitor.
The Ignitor Electrode sparks,
but Pilot does not light.
1. Gas supply is turned off or supply
line shut-off valve is closed.
2. Control Knob is not in PILOT posi-
tion.
3. Control Knob not pressed in while
in PILOT position.
4. Air present in gas lines.
5. Inlet supply pressure is not within
correct settings.
6. Other conditions that should be
identied only by a qualied gas
technician.
1. Turn on gas supply or open sup-
ply line shut-off valve.
2. Turn Control Knob to PILOT.
3. Press Control Knob in while in
the PILOT position.
4. Continue holding in Control Knob
and repeat ignition procedure
until air is bled from the lines.
5. Call local gas supplier. Adjust
inlet supply pressure to specica-
tion: NG; 5.5” w.c.-14.0”w.c. LP;
11.0” w.c.-14.0”w.c.
6. Call qualied gas technician.
Turn off heater and allow to cool completely before
servicing.
WARNING
!

18
Radiance®Vent-Free Gas Heater
30005056
Troubleshooting cont’d.
CONDITION POSSIBLE CAUSE SOLUTION
Pilot lights but ame goes out
when Control Knob is released.
1. Control Knob not fully depressed
or held in long enough.
2. Gas supply line shut-off valve is
not fully open.
3. Thermocouple connection is
loose at the Control Valve.
4. Pilot ame does not touch the
Thermocouple.
This can be caused by:
A) Incorrect gas pressure, and/or
B) other conditions that should
be identied only by a qualied
service technician.
5. Thermocouple is damaged.
6. Control Valve is damaged.
1. Depress Control Knob fully and
hold in for a full 30 seconds.
2. Fully open gas supply line shut-
off valve.
3. Inspect and tighten securely.
4. A) Call local gas supplier. Adjust
inlet supply pressure to specica-
tion: NG; 5.5” w.c.-14.0”w.c. LP;
11.0” w.c.-14.0”w.c.
B)Call local gas service techni-
cian.
5. Call local gas service technician.
6. Call local gas service technician.
Correct LP Pilot Flame. Correct NG Pilot Flame.
Pilot lights but Main Burner does
not.
1. Gas supply line shut-off valve is
not fully open.
2. Foreign material is blocking
Burner ports.
3. Main Burner orice is clogged.
4. Thermostat or remote switch not
activated.
5. Bad Thermopile.
1. Fully open gas supply line shut-
off valve.
2. Inspect and clear debris away
from Burner ports.
3. Call local gas service technician.
4. Set thermostat to higher tem-
perature or check remote switch.
5. Call local gas service technician.
Main Burner shuts off and Pilot
ame goes out while in operation.
1. Insufcient fresh air.
2. Incorrect inlet supply pressure.
1. Determine that adequate ventila-
tion exists to provide sufcient
fresh air. Open a window or pro-
vide additional ventilation. (See
Fresh Air Requirements, Pages
7-8)
2. Call local gas supplier. Adjust
inlet supply pressure to specica-
tion: NG; 5.5” w.c.-14.0”w.c. LP;
11.0” w.c.-14.0”w.c.
ST121a
JUV
Pilot flame wrong 2
9/25/00 djt
Pilot ame is weak - does not touch
Thermocouple.
Pilot ame is lifting.
Thermopile
Thermo-
couple
ST121a
ST674
RUVSOD
Pilot flame 2
7/24/01 djt

19
Radiance®Vent-Free Gas Heater
30005056
The following procedures will help ensure that your heater
continues to perform safely and efciently.
Firebox Cleaning and Inspection
Cleanliness is critical to correct operation of the heater.
The log set, burner, valve controls and air circulation
areas must all be kept free of dust and unobstructed by
debris. Inspect these areas before each use and clean
whenever accumulation is evident. Follow the simple
procedure outlined below.
Frequent cleaning may be necessary in living environments
subject to excessive carpet lint or pet hair. For example, if
you live with a dog that sheds continuously, you will need to
inspect the burner area frequently and clean it as often as
the accumulation requires. In extreme conditions, it may
be necessary to clean the burner and log set monthly
or bi-weekly.
This appliance should be inspected and thoroughly
cleaned annually by a qualied gas technician.
Cleaning Procedure
1. Turn the burner OFF and let the heater cool completely
before cleaning.
2. Lift the Front plate up and then swing the bottom out to
disengage it from the heater shell. (Page 8, Fig. 4)
3. Remove the screen by lifting up and away from the unit.
Or, if so equipped, remove the glass panel by releasing
the two upper retainer latches. Lift the panel up and off
of the rebox frame. (Fig. 28)
4. Carefully inspect the log set for damage. Contact your
local dealer if any damage is evident. DO NOT OPERATE
THE HEATER WITH A DAMAGED OR LOOSE LOG SET.
Use a soft-bristled brush vacuum cleaner attachment to
remove dust or debris from the log set, pilot and burner.
Use care as the log set is fragile.
5. Inspect the catalytic combustor at the top of the rebox.
Replace the combustor if any damage or deterioration is
evident.
6. Replace the screen or glass panel and the front plate.
DO NOT OPERATE THE HEATER WITH THE SCREEN
/ GLASS PANEL OR FRONT PLATE REMOVED.
Maintenance
Fig. 28 - Remove the screen or glass panel.
ST675
RUVSOD
screen/glass removal
7/01
Screen Hooks
Glass Latch
Dust and debris accumulation can result in poor
performance. Inspect the Valve compartment, burner parts
and log set frequently and Clean these parts monthly or
as often as accumulation warrants.
WARNING
!
Turn the burner Pilot OFF before applying paint. NEVER
paint pilot or around pilot area.
WARNING
!
Care of Cast Iron
An occasional dusting with a dry rag will help keep the painted
surfaces looking new. Use high-temperature stove paints,
available through your local dealer, to touch-up areas as
needed. Clean areas to be painted with a wire brush and be
sure to cover the log set, burner and valve assembly. Apply
the paint sparingly; two light coats of paint will give better
results than a single heavy coat.
Porcelain enamel surfaces should be cleaned with a
soft, damp cloth. Do not use abrasive cleaning agents. If
necessary, use only a cleaning agent formulated specically
for use on porcelain enamel surfaces.

20
Radiance®Vent-Free Gas Heater
30005056
1a
1b 1c
2
4
6
7
13
3
5056
Radiance VF PARTS
23
8
16
17 18
5
10a,b
21
19
9
20
24a,b,
c,d
11a
11b
15
25 26
27
22
14
12a,b
28
Vermont Castings Group reserves the right to make changes in design, materials, specications, prices and discontinue colors and products at any time,
without notice.`
Radiance Vent Free Gas Heater
Models: 3380, 3381
Ref. Description Part No.
1. Gas Logset 20004561
1a. Right Rear Log 20004562
1b. Left Rear Log 20004563
1c. Right Log 20004564
2. Manifold Assembly 20003739
3. Lava Rocks Burner 57897
4. Screen 20004554
5. Frame, Glass 1409112
6. Gasket, Glass Med, Knit 1203702
7. Trim ON/OFF Switch 30000874